diff --git a/llvm/lib/Analysis/DataStructure/GraphChecker.cpp b/llvm/lib/Analysis/DataStructure/GraphChecker.cpp
index 7bfbf7d4..6762748 100644
--- a/llvm/lib/Analysis/DataStructure/GraphChecker.cpp
+++ b/llvm/lib/Analysis/DataStructure/GraphChecker.cpp
@@ -52,6 +52,7 @@
       }
       AU.setPreservesAll();
     }
+    void print(std::ostream &O, const Module *M) const {}
 
   private:
     void verify(const DSGraph &G);